I'm going to start that answer, then I'm going to pass it over to Mr. Swales to see if he has anything to add.
When we carry out our audit work, obviously we need to obtain sufficient and appropriate evidence to make sure we have the information we need. With respect to the $111 million in delays, this was the information that the department provided to us. We also knew that the Parliamentary Budget Officer was carrying out work in this area as well; therefore, we didn't go any further in terms of carrying out work on costs.
I'm going to pass it over to Mr. Swales to see if he has anything to add on the $111 million.